Home / 39,626.84-54,684.72-21,721.82

Finding the Fourth Proportional to 39,626.84, 54,684.72 and 21,721.82

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Solution

The fourth proportional to 39,626.84, 54,684.72 and 21,721.82 is: 29,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,626.84 : 54,684.72 = 21,721.82 : x
  2. Step 2: Convert to fraction form
    39,626.84/54,684.72 = 21,721.82/x
  3. Step 3: Cross multiply
    39,626.84x = 54,684.72 × 21,721.82
  4. Step 4: Simplify right side
    39,626.84x = 1,187,851,371.17
  5. Step 5: Solve for x
    x = 1,187,851,371.17/39,626.84
  6. Step 6: Final answer
    x = 29,975.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.